Machine for making cement drain-tiles, &amp;c.



G. WEISS. MACHINE FOR MAKING CEMENT DRAIN TILES, Nc.

APPLICATION FILED SEPT- 23| I9II.

maIII I IIII ,II I I G. WEISS.

MACHINE FOR MAKING CEMENT DRAIN TILES, &c. APPLICATION man SEPT. 23.1911.

Patented June 15, 1915.

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I ...I I i I IIIIIIII'IIIIIIIIIIIIII GEORG-E WEISS, F

MACHINE' FOR MAKINGI- CEMENT DRAIN-TILES, 6to.

CHICAGO, ILLINOIS.'

Specication of Letters Patent.

Patented J une 15, 1915,

Application filed September 23, 1911. Serial No. 650,971,

T0 all whom it may concern Be it known that I, GEORGE WEISS, a

citizen of the United States, and a resident of Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefullImprovements in Machines for Mak' ing Cement Drain-Tiles, &c., of whichthe following is a full, clear,pand exact specification. A

My invention is concerned with a novel machine for making cement draintile, and is designed to produce a machine of the class described whichshall be simple in its conw struction, rapid in its operation, and which"'ward movement of the packing shall be certain and accurate in use, andwhich shall be durable.

A special object of my invention is to produce a machine that shalllower the packer preparatory to making another tile at a greater speedthan it is raised in the operation of forming a tile, thereby increasingthe possible output of a machine.

Another special object is to produce va mechanism fortraising, loweringand rotating the packer which will stop itself automatically when thepacker reaches the limit of its upward or downward movement, thusstopping the movements both of rotation and translation.

Another special object is to produce a device of the class described, inwhich the adjacent bearing of the spindle will always be 'at the samedistance from the packer which it supports, thereby increasing theaccuracy with which the packer is centered in the casing at all times,and consequently making the thickness of the tile more uniform at allheretofore.

To illustrate my invention, I annex hereto two sheets of drawings, inwhich the same reference characters are used to designate identicalparts in all the figures, of which- Figure 1 is a side elevation ofthecomplete machine with a portion thereof in central vvertical section,showing the parts in the position which they occupy just before themechanism is automatically stopped at the end of the u ward or formingmovement of the packing s aft; Fig. 2 is a similar view but with theparts in the position they assume just'prior to the stopping of themachine automatically at the end of the downshaft; Fig. 3. is asectional view onthe hne ,A-A yof Fig. 1; Fig. 4 is a front elevation ofthe gearing with the casing an'd the shifting points than has beenpossible` lever'removed; and Fig. 5 is a detail in sec'- tion on theline B-B of Fig. 1.

The various elements of the machine are mounted in a suitably designedframe 10, which is preferably a single casting so as to give thenecessary rigidity at all the parts and to prevent any possibledisplacement of the packer relative to the` casing by reason of thebearings becoming displaced.

rlhe power is applied to a belt wheel or pulley 11, which is secured tothe shaft 12,

journaled in a suitable horizontal bearing 13 in the frame work andhavingl secured on .the inner end thereof the beveled gear wheel 14,which wherethe machine is designed to lower the spindle carrying thepacker at a greater speed than that at which it is raised, as is thepreferred construction, has two sets of beveled gear teeth 15 and 16,the teeth 15 forming a beveled gear wheel of smaller diameter than thatformed by the teeth 16. The teeth 15 mesh with a beveled gear pinion 17,journaled in a vertical bearing 18, formed in the frame work, and has onits upper surface a clutch member 19, while the teeth 16 mesh with asimilar but oppositely disposed beveled gear wheel 20, journaled in thecorresponding bearing 21 and having the corresponding clutch member 22.

The packer shaft or spindle 23 hasits upper portion screw threaded andengaging the stationary nut 24, secured in the bearing 25 as by the setscrew 26, so that as the spindle 23 is rotated in either direction itwill be raised or lowered as the case may be. The spindle is journaledinthe bearings formed by the hubs of the gear wheels 17 and 20 throughwhich it passes and in which it is free to rotate, and it has a furtherbearing formed by the collar 27, which fits in the sleeve 28, which hassecured thereto the cross-piece or spider 29, which supports the hopper30, secured on its lower end'. This sleeve 28 has a certain amount ofvertical `movement, its upper end being guided inthe bearing formed bythe hollowed out hub of the gear'wheel 17, while its lower portion isguided in .the bearing 31, carried by the frame work 10. A collar 32,clamped on the sleeve 28 limits its downward movement while its upwardmovement is limited by the engagement of its upper end with the top ofthe hollow portion of .the hub of the wheel 17. v During its operation,the spindle 23 moves from an uppermost position, sub# stantially thatshown in Fig. 1, to a lowerposition which the packer assumes in thecustomary casing 34, which when the machine is in operation is seated inthe annulus 35, supported by forward from the bottom of the frame 10.The spindle 23 is provided with a splined groove 37 throughout so muchof its upper portion as is necessary to permit it to be secured by aspline to the sliding clutch member 38, which is provided on its upperand lower ends with the necessary teeth to engage with the clutch teeth19 and 22 of the gear wheels 17 and 20 respectively.v The member 38 alsohas the customary annular groove 39 engaged by the customary lugs on theforked end 40 of the bell crank lever 41 which serves as'an operatinglever to start or stop the machinery. In order to'hold the lever ineither one of its three positions, l provide suitable friction means,such for instance as is shown in Fig. 5, where it will be seen that thelever 41 has the comparatively large disk like surface 42, whichengages` the corresponding surface 43 on the bracket projecting from theinclcsing casing 44. To increase the friction of these surfaces 42 and43, I preferably hollow the hub 45 of the bearing bracket and locatetherein the helically coiled expanding spring 46 which surrounds thebolt 47 and engages the washer 48, which is held against the end of thesleeve by the nut 49 and the lock-nut 50, so that the desired degree loffriction can be secured to insure the lever 41 always standing where itis left after it has been intentionally moved either automatically or byhand. To automatically stop the machine at tlie end of the upwardmovement of the spindle, l provide the rod 51 extending parallel.thereto and mounted to slide in the bearings 52 and 53. The lowerend ofthe rod 51 rests on the cross-piece or spider 29 when the latter is nearthe limit of its upward movement and at other times is supported by thecollar 54 resting on top of the lug 52. The upper end at the end of theupward movement of the spindle engages the surface 55 carried by theforked arm of the lever 41, and thus disengages the clutch teeth andstops the upward movement of the spindle,y the momentum of which will,of course, serve to carry the clutch teeth fully out of engagementbefore the rotation of the spindle stops. Similarly the downwardmovement of the spindle is automatically stoppedby reason of the collar56, secured the bracket 36, extending f kof the spindle to raise thepacker, lugs 62 will begin on the upper end thereof engaging the lug 57on the slotted lever 58, pivoted on the frame and carrying at its freeend the rod 59, which terminates above the surface 55, and consequentlywhen the uppermost clutch members are engaged will serve to disengagethem when the collar 56 strikes the ,lugs 57.

The operation of the complete device will now be readily apparent. Whenthe spindle stops at the end of its downward movement, the annulus 59 ofthe packer extends down below the upper edge of the annular surface 60of the supporting annulus 35, and the hopper 30 has been allowed todescend by gravity until its ring 61 rests on the top of the casing 34,which is thus firmly held. The cement is shoveled into the top of thehopper and falls down upon the packer so that when thehandle 41 is swungto the proper position to start-the rotation the packer forcing thecement outward before the annular surface 59, which serves to smooth outand finish the interior of the tile, reaches the bottom of the tile. Asthe rotation of the shaft continues, the lugs 62 throw the cementoutward 'and pack it against the inner surface of the casing 34, whichinner surface is smoothed throughout its entire length by the annularsurface 59 in the manner which will be readily understood. Toward theend of the upward movement of the spindle 23, the upper shoulder of thecollar 27 engages the shoulder formed by the inwardly projecting Harige63 at the top of the sleeve 28 and the subsequent movement of thespindle 23 upward carries with it the sleeve 28 and consequently thehopper 30, which is thus lifted from the casing 34, which can now beremoved and an empty one substituted. After the hopper has thus beendisengaged from the casing, and as it moves upward with the spindle, itscross-piece 29 engages the bottom of the rod 51, and operates the clutchmechanism to disengage it and automatically stop the machine in themanner de scribed. When an empty casing 34 has been put in place, thelever 41 is moved in the opposite direction to engage the uppermostclutch members in which arrangement the teeth 16 do the driving, and onaccount of the greater diameter of the beveled 'gear wheel where theyare located, the spindle is rotated more rapidly, and consequentlydescends faster than it rises.

It will be apparent that support of the spindle 23 at the same distancefrom the packer in all positionsl of the latter insures a more perfectcentering of the spindle than would be possible otherwise, and thisinures to the uniformity of the thicknessof the tile throughout itslength. 1t willalso be noted that there is a considerable space betweenthe exterior of sal the continued ing or wearing out the bearings morerap-- idly.

While I have shown and described my invention as embodied in the formwhich I at present consider best adapted to carry out its purposes, itwill be understood that it is capable of modifications, and that I donot desire to be limited in the interpretation of the following claims,except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is:

l.- In a device of the class described, the combination with a frameworkadapted to support a casing at a fixed point thereon, of a packerspindle journaled in said framework, means for simultaneously rotatingsaid packer spindle and `moving it axially to and from the casing, saidmeans acting at different points on the spindle as-it is moved axially,a bearing collar carried by the spindle at a fixed point thereon, and anelongated fixed bearing-sleeve within which the collar rotates and moves'in all positions ofthe spindle, thereby furnishinga bearing support forthe spindle at the same distance froml its free end in all positionsthereof.

2. In-a device of the class described, the combination with a frame workadapted to support a casing at. a fixed point thereon, of a packersplndle 1 ournaled in said frame work, means for simultaneously rotatingof the sleeve and adapted to fit on the top'- of the casing, and ashoulder in the sleeve adapted to be engaged by the collar toward the-end of the upward movement of the spindle to lift the hopper ofl'` ofthe casing.

3. In a device of the class described, the combinationwith a frame workhaving a casing support thereon provided with an elongated bearingcollar at the lower end thereof, of a screw threaded packer spindle-journaled in said frame work, a packer having an annular surfaceadapted to coperate with and extend below the top of the annular bearingsurface, an elongated bearing sleeve surrounding the spindle and havinga hopper secured on the lower end thereof, vertically disposed lbearings in which said sleeve can slide, a stationary nut with which thethreaded packer spindle coperi ates,l oppositely disposed beveled gearshaving hollow hubs through which the packer spindle extends, clutchmechanismmounted Ato slide on the packer spindle and coperating with thebeveled gear wheels, means for rotating the beveledvgear wheels, andautomatic stop mechanism for shifting the clutch mechanism toward theend of the upward and downward movement of the packer spindle.

4. In a device of the class described, the combination with a frame workhaving a casing support thereon provided with an elongated bearingcollar at the lower end I thereof, of a screw threaded packer spindlejournaled in said frame work,'a packer hav- 80 ing an annular surfaceadapted to coperate with and extend below the top of the annular bearingsurface, an elongated bearing sleeve surrounding the spindle and havinga hopper secured on the lower end thereof, vertically disposed bearingsin which said'sleeve can slide, a stationary nut with which the threadedpacker spindle coperates, oppositely disposed beveled gears havinghollow hubs through which the packer spindle extends, clutch mechanismmounted to slide on the packer spindle and coperating with the beveledgear wheels, means for rotating the beveled gear wheels, and lost motionconnections between the packer spin` 95 dle and the bearing sleeveserving to lift the sleeve automaticallyy toward the end of the upward`movement of the packer shaft.

5. In a device of the class described, the combination with a frameworkadapted to 100 support a casing at a fixed point thereon, of

'a packer spindle journaled in said framework, a drive shaft, gearingYbetween the drive shaft and packer spindle for rotating the latter fromthe former in one relative direction at a fixed'relative speed andsimultaneously moving it toward the casing, a second gearing between thedrive shaft and packer spindle for rotating the latter from the formerin the other relative direction l tat a slower relative speed andsimultaneously moving it away from the casing, automatic means fordisengaging the operative gearing at the end of the longitudinalmovement of the spindle in either direction, and hand-operated means forengaging the other gearing after either gearing has been automaticallydisengaged.

In witness whereof, I have hereunto set my hand and aiixed my seal, this20th day 120 of September, A. D. 1911.

GEORGE WEISS. [1.. a]

